Alarm-clock attachment



c. L. RA'SMUSSEN.

ALARM CLOCK ATTACHMENT. APPLICATION FILED JULY 30.1920.

1,397,702. Patented Nov. 22 1921.

2 SHEETS-SHEET 1- m1 fiesmmseh INVENTOR ATTORNEY WITNESS:

c. L. RASMUSSEN. ALARM CLUCK ATTACHMENT. APPLICATION FILED JULY 30,1920.

1,397,702. I Patented Nov. 22, 1921.-

2 SHEETS-SHEET 2.

Carl. Ike/image? 59 7 BY M ATTORNEY W ITNBS UNITED STATES PATENT OFFICE.

CARL L. RASMUSSEN, OF BUTTE, MONTANA.

ALARM-CLOCK Application filed July 30,

T 0 all whom it may concern.

Be it known that I, CARL L. RAsMUssnN, a citizen of the United States ofAmerica, residing at Butte, in the county of Silver Bow and State ofMontana, have invented new and useful Improvements in Alarm- ClockAttachments, of which the following is a specification.

This invention comprehends the provision of an alarm clock attachment inthe nature of an electric lamp and switch therefor, which isautomatically actuated with the sounding of the alarm to illuminate thelamp.

Another important object of the invention resides in the provision of anattachment of the above mentioned character which can be quickly andeasily associated with the clock without in any way reconstructing thelatter, and removed from the clock as the occasion may require.

The nature and advantages of the invention will be better understoodwhen the following detailed description is read n connection with theaccompanying drawing, the invention residing in the construction,combination and arrangement of parts as claimed.

In the drawings forming part of this application, like numerals ofreference indicate similar parts in the several views, and wherein:

Figure 1 is a rear elevation of a clock showing the attachment appliedthereto with the parts in normal position.

Fig. 2 is a side elevation.

Fig. 3 is a top plan view.

Fig. l is a vertical sectional view taken on line l-l of Fig. 1.

Fig. 5 is a transverse sectional view taken on line 55 of Fig. 1.

Fig. 6 is an enlarged fragmentary view showing the position of partswhen the switch is closed.

Referring to the drawings in detail, A indicates an alarm clock of theusual well known construction and wherein 10 indicates the alarm windingkey, in conjunction with which the attachment forming the subject matterof the invention is used. The attachment embodies a base 11 of suitableinsulating material, which is secured to the top of the clock A in anysuitable manner, preferably by means of a pair of clips 12 secured tothe underside of the base 10 and engaging the edge of the body of theclock Specification of Letters Patent.

ATTACHMENT.

Patented Nov. 22,1921.

1920. Serial No. 400,019.

as shown. Mounted upon the base 11 is the socket lt for the electriclight bulb 15, the socket being of the well-known construction exceptthat it is provided with fixed contact which projects beyond the socketand against one of the edges of the base 11. Pivotally mounted upon thesame edge of the base is a. movable contact 16 which when moved intoengagement with the fixed contact 17 closes the circuit to illuminatethe lamp as will be readily understood. The conducting wires 18 areterminally connected to the movable switch into the socket, these wireshaving a plug 18 which may be connected up with any suitable source ofenergy.

Loosely mounted upon the stem of the alarm winding key 10, is aneccentric 19 having a peripheral groove 20 which receives the loopedextremity 21 of an operating element 22 which controls the movement ofthe movable contact 16. For this purpose, the operating element 22operates through an opening 23 in the base 11, and has its adjacentextremity offset as at 24.- to overlie the movable contact 16.Projecting from the eccentric 19 is a pin 25 which is disposed in thepath of movement of the key 10. In practice, the movable contact isarranged above the fixed contact 17, being held in this positionfrictionally and in which position of parts the offset extremity of theoperating element rests against the adjacent edge of the movablecontact. At the moment when the. alarm sounds, the key 10 rotates towardthe right, and by reason of the fact that the pin 25 is disposed in thepath of movement of this key, the eccentric 19 is turned upon the stemmoving down on the operating element 22 with the result that the movablecontact 16 is brought into engagement with the fixed contact 17. Thecircuit is thus closed and the lamp 15 illu minated as will be readilyunderstood. The construction is such that the alarm can be rewoundwithout interference on the part of the attachment, and the movablecontact 16 can be moved below the base when in active position and outof the way while the alarm is being rewound. The invention is in theform of an attachment which can be manufactured and sold at a nominalcost and applied to any make of alarm clock going description the natureand advantages of the invention will be readily understood, I desiretohave it known that I do not limit myself to what is herein shown anddescribed, and that such changes may be resorted to when desired as fallwithin the scope of what is claimed.

W hat I claim is: r

1. An alarm clock attachment comprising a. base, means carried by thebase for secur ing it to the clock, a lamp socket supported by the base,a switch including a fixed contact carried by the base, a movableContact pivoted on said base, an operating element associated with andactuated by the alarm winding stem incident to rotation thereof in onedirection, and an offset extremity carried mountedfor pivotal movement,an eccentric loosely mounted upon the alarm winding stem, a pinprojecting from said eccentric and arranged to be engaged by the key andsaid Stemv when rotated in one directionto rotate said eccentric, anoperating element for said movable contact, said element being connectedwith and operated by said eccentric, and said element having an offsetextremity overlying one edge of the movable contact for thepurposespecified.

3 An alarm clock attachment comprising a base member secured to theclock, a lamp socket carried by'the base, a switch including a fixedcontact associated with the base, and amovable contact pivoted thereon,an eccentric loosely mounted upon the alarm winding stem, saideccentrichaving a circumferential groove, an operating element for said movablecontact, said element terminating to provide a loop received by saidgroove, andt-he opposite end of said. element being offset to overlieone edge of the movable contact for the purpose specified.

In testimony whereof I aifix my signature.

CARL L. RASMUSSEN.

